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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $89,752 | 118,189 | 118,189 |
| 2006 | $379,147 | 581,290 | 581,290 |
| 2007 | $48,663,997 | 133,436,000 | 133,436,000 |
| 2008 | $671,997,797 | 1,312,127,326 | 1,312,127,326 |
| 2009 | $772,813,746 | 2,421,028,502 | 2,421,028,502 |
| 2010 | $798,906,967 | 2,702,230,111 | 2,702,230,111 |
| 2011 | $1,239,110,621 | 3,079,316,530 | 3,079,316,530 |
Note: Quantity represents Weight in kilograms
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